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B-FLAP I – Explosion Isolation Flap

ENHANCED TECHNICAL PARAMETERS OF B-FLAP I 

The explosion isolation flap valve offers the customer effective prevention of explosion transmission between connected technologies. The explosion isolation flap isolates the explosion in the entire pipeline of the suction systems. Thus it is suitable not only to prevent the transmission of explosions at the inlet to the filter or cyclone but also to isolate the explosion on the outlet piping from filtration systems (so-called clean side of the filter). Other installation options of B-FLAP I are, for example, on the suction line to the mill, on the inlet, where material flows to dryers, and other similar equipment.

Explosion isolation flap B-FLAP I is a mechanical device designed to prevent the transfer of flame and pressure between technologies during an explosion. During normal operation, the explosion isolation flap valve is kept open using the RPD mechanism. This solution significantly reduces pressure losses in the piping system. During the explosion, the protected pipe will be closed and locked. Together with other safety elements, our flap valve forms an effective system for the protection of technological units. Most often, B-FLAP I is used in combination with an explosion venting device – VMP or FLEX. The explosion isolation flap is suitable for pipes with a diameter from DN 100 to DN 800.

 If you use pneumatic conveying, vertical piping with a diameter of less than DN 100 in your technology, or you have technology designed for maximum explosion pressure or shorter installation distances, see GatEx or HRD barrier.

ADVANTAGES 

  • Certified according to EN 16447 and EN 15089
  • Suitable for all types of dusts, including metal, up to explosion class St 3
  • Certified for explosive dusts with extremely low values of minimum initiation energy and temperature (MIE, MIT)
  • Applications for inlet and outlet suction routes of filtration systems
  • Suitable for push and pull system
  • Reverse flow application
  • Possibility of installation on horizontal and vertical pipes
  • Possibility of use in a piping system consisting of elbows and / or obstacles
  • Wide range of sizes from DN 100 – DN 800
  • Mechanical equipment without the need for electrical energy and a trigger mechanism
  • Low pressure losses, high pressure resistance
  • Possibility of equipping with a position indicator and / or pollution signalizator
  • Easy installation, inspection, and maintenance
  • Explosion isolation flap valve is locked when closed
  • Standardly equipped with an RPD mechanism
  • Optional possibility to produce in a stainless steel version
PREVENTION OF EXPLOSION PROPAGATION BETWEEN
  • Spray dryers
  • Filters
  • Bins
  • Mills
  • Crushers
  • Separators
  • Cyclones

and other equipment where there is a risk of transmission of a dust explosion

APPLICATION

FOOD INDUSTRY – MALTHOUSE

Malthouses are an integral part of the food industry. This following case study will show you all risk areas, including the selection of the most suitable explosion protection designed by RSBP.

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REFERENCES FROM INSTALLATIONS 

Klapka2 Klapka1 Klapka4 Klapka3 Klapka5 Klapka6-1

DIMENSIONS 

TECHNICAL PARAMETERS
 Type ØA
(mm)
ØB
(mm)
ØC
(mm)
L
(mm)
N
(mm)
P
(mm)
Weight (kg)
 DN 100 152 132 100 280 287 244 9
 DN 125 177 157 125 305 308 269 11
 DN 150 202 182 150 330 337 294 13
 DN 200 253 233 200 390 387 344 18
 DN 250 303 283 250 510 502 417 40
 DN 300 363 337 300 580 552 467 50
 DN 315 378 352 315 600 567 482 53
 DN 355 418 392 355 630 607 522 61
 DN 400 464 438 400 695 652 568 77
 DN 450 514 488 450 750 702 619 88
 DN 500 564 538 500 800 752 669 101
 DN 560 664 629 560 930 838 745 157
 DN 630 734 698 630 1005 908 815 180
 DN 710 814 775 710 1156 1102 967 305
 DN 800 904 861 800 1246 1193 1057 351

 

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